Adjustable stapling machine



April 27, 1954 B. E. SHLESINGER, JR 2,676,318

ADJUSTABLE STAPLING MACHINE Filed May 21, 1953 2 Sheets-Sheet l INVENTOR April 1954 B. E. SHLESINGER, JR

ADJUSTABLE STAPLING MACHINE 2 Sheets-Sheet 2 Filed May 21, 1953 INVENTOR generally referred to as I punches.

Patented Apr. 27, 1954 UNITED STATES OFFICE 11 Claims. (Cl. 1-3) This invention relates to improvements in stapling machines, punches and the like of the type desk staplers or Present machines'arelimited in use by the depth of their throat. Business ofiices are constantly being faced with the problem of stapling papers at points remote from their edge and beyond the scope of the machines now available. It isan object of this invention to provide a stapling machine or the like capable of stapling at points remote from the edge of the paper.

It is a further objectof this invention to proivid'e'a stapling machine that is no larger than those presently in use, but which is capable of stapling at remote points.

A still further object of this invention is to pro vide a stapling machine for clerical use that is adjustable.

'Another object of this invention is to provide an adjustable stapling machine that is compact.

Yet another object of this invention is to provide an adjustable stapling machine. Without sacrificing staple capacity.

A further object of this invention is to provide a stapling machine which is readily adjustable to a series of positions. A still further object of this invention is to provide an adjustable stapling machine that is "rugged and economical to manufacture.

' Another object of this invention is to provide a stapling machine having an adjusting mechanism that will not interfere in any manner with the operation of the machine.

These, and-other objects and advantages of this invention will be apparent from the following description and claims. I

In the accompanying drawings which illustrate by way of example various embodiments of this invention:

Fig. 1 is a side elevation of a stapler embodying this invention and showing the stapler in closed position;

Fig. 2 is a side elevation of the stapler in ex tended position; r

Fig. 3 is a section on the line 33 of Fig. 1

; looking in the direction of the arrows;

Fig. 4 is a section on the line i i of Fig. 2 looking in the direction of the arrows;

Fig. 5 is a bottom plan view of a modified form of stapler;

, Figs. 6 and 7 are sections on the line i-5 of I Fig. 5 showing the detent in looking and in disengaged positions, respectively;

Fig.8 is a side elevation of another modifica- "'tion of the stapler;

Fig. 9 is a section taken on the line 9--9 of Fig.

8 looking in the'direction of the arrows.

In Figures 1 to 4, the stapling machine comprises an anvil support having a front section ID and a rear'section ll. Resilient pads 42 act as cushions or castors for the machine and are secured to the front and rear sections of the anvil support by cement or other suitable means. An anvil I 3 is carried on front section it. A pair of brackets l4 are carried by the rear sec= tion H and actas support for pivot pin it. A stapling head support comprising a front section 20 and a rear section 2! is supported on pivot pin I 5 by means of-ears 22 carried by the rear section 2|. Mounted on front section 20 is a conventional staple driving head. 23 provided with a plunger of staple'driver 24% to which is secured a suitable striking button 25. A conventional staple feed mechanism part of which is shown at 26 is supported and housed in front section 25).

Riveted to rear sections II and ti by means of rivets 30 are straps 3i and 32 which serve as carriages for the front sections it and 2%. Fingers 33 and 34-(Figs. 3 and 4.) which can be punched out of the anvil and stapling head supports serve as guides for stops 3| and 32. It is understood that other types of guides may be provided such as slotted tracks and the like. Straps 3| and 32 have at their forward ends, stops 35, which are of a width sufficiently narrow to pass between fingers 33 but wide enough to engage fingers 36 when the front sections are extended (Figures 2 and 4). The fingers 33 located on the rear sections H and 2! forward of the rivets 30, prevent pivotal movement of the straps about the rivets 39. Similarly the rear fingers 33 on the front sections prevent ivoting and provide rigid support for the front sections one another.

- faces of the straps 3| and 32 may beused.

adjusting rods 40 and iii.

Figures 5, 6 and '7 show a modification having Rings 42 and d3 serve as guides for rods to and 4!. Such rings can be cast integrally'with the anvil support or spot welded thereto.

' Guide ring 43 is substantially longer than rings 42 to prevent pivoting and provides a rigid conprevent the adjusting rods 49 and A! from slipnectionfor the anvil support When extended. To

ping through the guide rings 52 on rear section l, lugs 45 are formed on rods 46 and 4!. A similar lug 45 is formed on the front of rod ii for the same purpose. Rod 4! is notched as at d? to permit selective adjustment between the parts.

A locking mechanism (Figures 6 and '7) for rod 4| is provided in front section In. A plunger 48 having a detent portion 49 is supported by one side wall of front section and an inner bracket 50. A spring 5| interposed between inner bracket 50 and a collar or flange 52 on plunger it tends to keep the open ended plunger in a locking tion.

Operation-By depressing the plunger Qt (Figure 7), rod M is permitted to slide in guide rings 42. Upon release of the plunger '48, detent por tion 49 (Figures 6 and '7) of the plunger d3 drops into one of the notches 41 (Figure 6).

It will be obvious to those skilled in the art that the rods of the above modification can also be used as the stapling head support adjusting mechanism.

Figures 8 and 9 show another modification in which both the stapling head support and anvil support are simultaneously adjusted. In this modification two pairs of racks lb and H are secured to the front sections ill and 20 by means of rivets 12 or other suitable means such as welding. Two pairs of meshin pinions 13 and T4 engage racks l6 and H respectively. Pinions 13 are fixed to shaft 75 "(Figure 9) which is carried on the rear section Ila through which racks ill slide. Pinions Mare fixed to pivotpin l'Ea which connects rear sections Ha and 2m in a manner similar to pivot pin 15 heretofore described. Pivot pin 15a is extended to receive a turning knob 16 which is fixed to the pivot pin [Ed by suitabl means such as a set screw "i (Figure 9). A similar knob could be provided on the opposite end of pivot pin lfia if desired. Guides 18 are secured to rear sections Ila and 2Ia to prevent lateral movement of racks 10 and H and stops it prevent racks "EB and H from disengaging pinions E3 and T4. Indicia may be prO- vided on any or all of racks Hi and H for measured adjustment.

Operation-By rotating knob 16, meshing pinions 13 and M rotating in opposite directionsas indicated by the arrows in Figure 8, act on racks r 10 and H to extend or retract front sections Ill and 20.

While the invention has been described in connection with different embodiments thereof, it will be understood that it is capable of further modification, and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains, and as may be applied to the essential features hereinbefore set forth and as fall Within the scope of the invention or the limits of the appended claims.

Having thus described my invention, what I claim is:

1. An adjustable stapling machine comprising an anvil arm, an anvil on said anvilarm, a stapling head carrying a driver and a magazine, arms connected to and extending rearwardly from said anvil arm and said stapling head respectively, means for pivotally mounting said last mentioned arms together, and means permitting relative adjustment of the distance between the pivot means and the anvil and between the pivot means and the driver.

2. An adjustable staplin machine comprising a base having a front end section, a mid-section, and a rear end section, an anvil on said base front end section, a stapling head having a front end section, a mid-section, and a rear end section, a driver on said stapling head front end section, pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to said base, and means permitting relative adjustment of one of said base end sections with said base mid-section and one of said stapling head end sections with said stapling head mid-section, said base mid-section and said stapling :head midsection being rigidly connected to the other base end section and the other stapling head end section respectively.

3. An adjustable stapling machine comprising a base having a front end section, amid-section, and a rear end section, an anvil on said base front end section, a staplin head having arront end section, a mid-section, and a rear end section, a driver on said stapling head front end section, pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to-tsaid base, and means adjustably connecting said'base end sections with said base mid-sections and said stapling head end. sections with said staplin head midsections so as to allow for extension and contraction of said base and said stapling head.

4. An adjustable stapling machine "comprising a base having a front end section, a mid-section, and a rear end section, anxanvil 'onsaid base front end section, said base mid-section'be'ing rigidly connected to one of said base 'end sections, means on the other of said base end sections "formin a guide for the 'base mid-section to b guided thereby so as to allow for extension and contraction of said base, a stapling head having a front end section, a mid-section, and a rear end section, a driver on said stapling head front end section, said stapling head mid-section being rigidly connected to one of said stapling head end sections, means on the other of said stapling head end sections forming a guide for the stapling head mid-section to be guided thereby so as to allow for extension and contraction of said stapling head relative to said base, and pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to said base.

5. An adjustable stapling machine comprising a base having a front end section, a mid-section, and a rear end section, an anvil on said base front end section, said base mid-section being rigidh connected to said base rear end section, means on said base front end section forming a guide for said base mid-section to be guided thereby so as to allow for extension and contraction of said base, a staplin head having a front end section, a mid-section and a rear end section, a driver on said staplin head front end section, said stapling' head mid-section being rigidly connected to said stapling head rear end section, means on the stapling head front end section forming a guide for the stapling head mid-section to be guided thereby so as to allow for extension and contraction of said stapling head relative'to said base, and pivot means connecting said rear end sections together for pivotal movement of said staplin head relative to said base.

6. An adjustable stapling machine comprising a base having a. front end section, a mid-section, and a rear end section, an anvil on said base front end section, said base mid-section being rigidly connected to said base rear end section, means on said base front end section forming a guide for the base mid-section to be guided thereby so as to allow for extension and contraction of said base, a stapling head having a front end section, a mid-section, and a rear end section, a driver on said stapling head front end section, said stapling head mid-section being rigidly connected to said stapling head rear end section, means on said stapling head front end section forming a guide for the stapling head mid-section to be guided thereby so as to allow for extension and contraction of said stapling head relative to said base, said mid-sections being shaped in the form of straps, and pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to said base.

7. An adjustable stapling machine comprising a base having a front end section, a mid-section, and rear end section, an anvil on said base front end section, said base mid-section being rigidly connected to said base rear end section, means on said base front end section forming a guide for the base mid-section to be guided thereby so as to allow for xtension and contraction of said base, a stapling head having a front end section, a mid-section, and a rear driver on said stapling head front end section, said stapling head mid-section being rigidly connected to said stapling head rear end section, means on said stapling head front end section forming a guide for the stapling head mid-section to be guided thereby so as to allow for extension and contraction of said stapling head relative to said base, said mid-sections being shaped in the form of straps, pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to said base, and stops on said mid-sections for engagement with said guide means to prevent disconnection of said base said base mid-section and said stapling head end front section tion.

8. An adjustabl stapling machine comprising a base having a front end section, a mid-section, and a rear end section, an anvil on said base front end section, said base mid-section being rigidly connected to said base front end section, means on said base rear end section forming a guide for said base mid-section to be guided thereby so as to allow for extension and contraction of said base, a stapling head having a front end section, a mid-section, and a rear end section, a driver on said stapling head front end section, said stapling head mid-section being rigend section, a

front end section from from said stapling head mid-see idly connected to said stapling head front end section, means on the stapling head rear end section forming a guide for the stapling head mid-section to be guided thereby so as to allow for extension and contraction of said stapling head relative to said base, and pivot means connecting said rear end sections together for pivotal movement of said stapling head relative to said base.

9. An adjustable stapling machine comprising an anvil arm, an anvil on said anvil arm, a stapling head carrying a driver and a magazine, racks connected to and extending rearwardly from said anvil arm and said stapling head respectively, means for pivotally mounting said racks together, and pinions mounted on said pivot means cooperating with said racks permitting relative adjustment of the distance between the pivot means and the anvil and between the pivot means and the driver.

10. An adjustable stapling machine comprising an anvil arm, an anvil on said anvil arm, a stapling head carrying a driver and a magazine, two pairs of parallel racks, one pair connected to and extending rearwardly from said anvil arm, and th other pair connected to and extending rearwardly from said stapling head, means for pivotally mounting said two pairs of parallel racks together, and two pairs of parallel pinions mounted on said pivot means, one pair cooperating with said anvil arm racks, the other pair cooperating with said stapling head racks, permitting relative adjustment of the distance between the pivot means and the anvil and between the pivot means and the driver.

11. An adjustable stapling machine comprising an anvil arm, an anvil on said anvil arm, a stapling head carrying a driver and a magazine, two pairs of parallel racks, one pair connected to and extending rearwardly from said anvil arm, and the other pair connected to and extending rearwardly from said stapling head, means for pivotally mounting said two pairs of parallel racks together, two pairs of parallel pinions mounted on said pivot means, one pair cooperating with said anvil arm racks, the other pair cooperating with said stapling head racks, permitting relative adjustment of the distance between the pivot means and the anvil and between th pivot means and the driver, and a turning knob connected to one set of parallel pinions.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 389,922 Delagneau Sept. 25, 1888 2,059,021 Pankonin Oct. 27, 1936 2,096,371 Cavanagh Oct. 19, 1937 2,227,314 Maynard Dec. 31, 1940 

